APA引文

Beltran, D. G. (1963). A method of determining economical sample size for sample surveys.

Chicago Style (17th ed.) Citation

Beltran, Diosdado G. A Method of Determining Economical Sample Size for Sample Surveys. 1963.

MLA引文

Beltran, Diosdado G. A Method of Determining Economical Sample Size for Sample Surveys. 1963.

警告：這些引文格式不一定是100％准確.